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TrkA+感觉神经元调节骨髓瘤的扩散和血管化,以促进疾病的进展
bioRxiv : the preprint server for biology
|July 9, 2024
概括
在骨髓瘤 (OS) 中准感觉神经TrkA减少了瘤生长,转移和疼痛. 抑制神经TrkA会破坏信号通路,为骨癌提供一种新的治疗策略.
科学领域:
- 在瘤学瘤学.
- 神经科学是一个神经科学.
- 分子生物学分子生物学
背景情况:
- 骨头疼痛是骨髓瘤 (OS) 的常见症状,起源于外围神经.
- 除了疼痛之外,感官神经元在OS中的作用尚未得到充分理解.
研究的目的:
- 研究OS中感官神经内置的调节功能.
- 探索在OS进展中的TrkA信号,并确定治疗点.
主要方法:
- 在小鼠中使用化学遗传方法与TrkA敲进等位基因来抑制OS期间的感觉神经功能.
- 在小鼠和人类OS样本上使用单细胞转录组学和多细胞组学分析.
- 使用FDA批准的布皮瓦卡因脂质体来抑制轴突内生长.
主要成果:
- TrkA抑制显著降低了OS感官内置,血管化,瘤生长和转移.
- 化改变了OS瘤细胞和微环境的表型,减少了CGRP和VEGF信号传递.
- 布皮瓦卡因脂质体减少了肉瘤的生长,血管性和缓解疼痛.
结论:
- 表达TrkA的外围神经元促进OS的进展.
- 抑制感觉神经破坏了CALCR和VEGF信号传递,减少了OS生长,提高了生存率.
- 针对OS的病理性内置是一种潜在的新型辅助疗法.
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